Wittenberg P, Knoth S (2018). vlad: Variable Life Adjusted Display. R package version: 0.2.0, https://CRAN.R-project.org/package=vlad.

Corresponding BibTeX entry:

  @Manual{vlad,
    title = {{vlad}: Variable Life Adjusted Display},
    author = {Philipp Wittenberg and Sven Knoth},
    year = {2018},
    note = {R package version: 0.2.0},
    url = {https://CRAN.R-project.org/package=vlad},
  }